www.hysecurity.com Troubleshooting D0559 Rev. A 75
Type Alert/Fault/Error Display Buzzer Chirp Sequence Possible Cause & Suggested Corrective Action
ALERT ALERT 2
DRIFT CLOSED
2 pulses per second for 10
seconds
Set F01 in the User Menu, to enable this option. If a M30/M50
gate should begin to drift closed it automatically reopens (for
up to 4s) once it leaves the full open limit. If it is not back on
the open limit at the end of 4s, an audible alert occurs. Check
for cylinder leakage, misadjusted/failed open limit, misadjusted
brake valve, outside pressure (wind, fallen trees) trying to force
the M30/M50 gate closed.
ALERT ALERT 3
EXCESS DRIFT
Gate drift in transit -
Advisory only. The alert
apperas and is being
prevented from re-
opening.
Will self-clear after an open or close input.
ALERT ALERT 4
THERMAL OVERLOAD
2 chirps per second every
15 seconds
The motor windings have exceeded a preset temperature
generally due to excessive current. Verify:
• The motor connections are correct for the supply voltage
• Running voltage is within 10% of rated
• High starting currents last 2 seconds or less; if not and
voltage during start is correct, on 1Ø units you can replace
the start switch/capacitor
• Motor running current (all phases) is at or below rated ( at
normal pressures)
• When the motor is cool, open the motor connection box,
disconnect the 2 small wires going into the motor, and use
an ohmmeter to check continuity of these wires. They should
be a short circuit; if not, replace the motor.
ALERT ALERT 5
BOTH LIM ACTIVE
2 chirps per second every
15 seconds
The STC is seeing both limits tripped at the same time. Reset
the limits through the Installer Menu’s Learn Limits reset.
ALERT ALERT 6
LIM NOT RELEASED
2 chirps per second every
15 seconds
Is the pump developing pressure? Are the brake valves set
properly? Is there hardware holding the gate?
Check uid levels and brake value settings.
ALERT ALERT 7
FREQ SHIFT FAULT
2 chirps per second every
15 seconds
HY-5A detector has detected a frequency change outside the
normal range. Check the loops and the integrity of the loop
installation.
ALERT ALERT 8
LOOP SHORTED
2 chirps per second every
15 seconds
HY-5A detector has detected a short circuit in the loop.
Temporarily switch detector to be sure the loop is at fault and
then repair it.
ALERT ALERT 9
LOOP OPEN
2 chirps per second every
15 seconds
HY-5A detector has sensed that the loop has become an open
circuit. Check all connections and/or use an ohmmeter to nd
out where the break is.
ALERT ALERT 10
I2C BUS ERROR
2 chirps per second every
15 seconds
Communication issue between the HY-5A and the Smart
Touch Controller; reset and try again. Replace the HY-5A if the
problem continues.
ALERT ALERT 11
DETECTOR FAULT
2 chirps per second every
15 seconds
Unknown fault; perform the megaohm test and x the loop if
necessary. Replace the HY-5A if the problem continues.
ALERT ALERT 12
ON TOO LONG
2 chirps per second every
15 seconds
The detector believes there has been a vehicle on the loop for
greater than 5 minutes.
• Is there something metal on (or near) the loop?
• Is the sensitivity adjustment set too high?
• Is the roadway solid? If the underground loop moves it will
give false readings.
• There may be a problem with the loop itself. Check with a
megohm meter. New loops should read 100 mega-ohms
or better, between 50 and 100 operation are generally OK,
below 50 meg-ohms install a new loop.